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- WW6") J. 0. DRUOKLIE'B & W. FBL

Gas Valve.

N0. 238,768. Patented March 15,1881.

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NITED STATES PATENT ()FFICE.

JULIUS C. DRUGKLIEB AND WILLIAM FELS, OF PATERSON, NEW JERSEY.

GAS-VALVE.

SPECIFICATION forming part of Letters Patent No. 238,768, dated March 15, 1881.

Application filed December 7, 1880. (No model.)

With our newly-invented valve the operative,

by turning on thelightin front of a machine,lowers by the same action the light in the rear of the machine,being compelled to save gas where it is not needed.

Figure 1 is a sectional view of our newlyinvented valve, showing the valve-seat A and its outlets b c and inlet a. B shows the construction of the valve-key. In the center of the conic part of the valve-key its circumference is divided into four equal partsmarked B B B B. A channel, a, largeenough to conduct the full volume of gas introduced through the inlet a, is cut out at B. A fine groove or channel, (1 is cut into B B and at B the valve-key is left solid. 1) is an ordinary valve, (represented as forming a solid piece with A,) and serves for regulating the pressure of the gas.

Fig. 2 is a side View of the valve, showing the construction of the flat part or thumb-piece of the valve-key B. The valve-key B, in the position shown in Fig. 1, is supplying the outlet 0 with a full flow of gas, while the flame at b is kept burning very low by the current of gas escaping through (1. By giving the valvekey B a quarter-turn to the left the main current would be conducted through outlet b, while the flame at 0 would receive a small current or flow through 61 The valve-key B, by receiving another turn to the left, the solid part of B would cut off the supply of gas at a and extinguish both flames.

Fig. 3 is an end view of our newly-invented valve at right angles to Fig. 2, showing that part of the valve-seat a cut out for limiting the valve-key to a quarter of a turn, showing also a notch, it, cut in the Valve-seat A. The flat part of the valve-key B, as represented in Fig. 2, is provided with a slot, t, for the reception of a tumbler, T, the tumbler being provided with a spring, 8, and is pivoted at i. A notch, a, is cut in the valve-seatA at its wider part, which allows the nose of of tumbler T to move clear one-quarter of a turn of the key B. A slight pressure on the projecting part f of the tumbler T will lift its nose a above the shoulders formed by cutting the notch a into the valve-seat A for limiting the motions of the valve-key to a quarter of a turn, and allow the keyB to be so mined as to shut off the flow of gas and permit the nose n of tumbler T to enter the notch 02, which looks the key B at that point where the flow of gas is cut off. The key may be unlocked by simply pressing on the tumbler at), which will lift the nose n from the notch n and allow the key B to be turned as desired.

Having described our newly-invented valve and its mode of operation, what we claim, and desire to secure by Letters Patent, is--- 1. The combination of the valve-seat A with the valve-key B, constructed with the described grooves or channels at B, B and B and the solid part at B, the tumbler T, projection f, pivot 1;, spring 8, slot t, and nose of, substantially as described.

2. The combination, with the valve-key B, of the valve-seat A, provided with notch n and notch n, outlets b c d (P, all arranged as shown and set forth.

JULIUS G. DRUGKLIEB. WILLIAM FELS.

Witnesses JOHN INGLIS, WM. J. DYNAN. 

